I would apply but I have a long ban history (7) despite having collegiate/work experiences that qualify to be a GP. If having a ban history defines our "maturity" and/or "in-game knowledge", then it's probably why majority of us don't apply.
I personally dislike it when GP's go inactive for x amount of days because within those days, they could have prevented a hacker or someone being vulgar to other players. It's like the "10 hours per week" doesn't really apply anymore to the position. If the GPA were to have a defined system of accountability for every member on that team, then things would be far different. If you honestly can't be online everyday and do your duties, step down from your position. It doesn't matter if you have a "life", you applied to prevent things from escalating in the game.